let name = 'name'

function foo() {
  let fooName = 'fooName'
  console.log('fooName==', fooName)
  return bar()
}
function bar() {
  let barName = 'bar'
  console.log('barName==', barName)
  return barName
}

let tt = foo()
console.log('tt==', tt)
